Question

the belief that an individual \must have done something\ to be arrested by law enforcement officers best illustrates: the mere exposure effect. the just-world phenomenon. deindividuation. mirror - image perceptions.

Explanation:

The just - world phenomenon is the belief that people get what they deserve. In this case, thinking an arrested individual "must have done something" aligns with this concept. The mere exposure effect is about increased liking due to repeated exposure. Deindividuation is a loss of self - awareness in groups. Mirror - image perceptions are mutual views in conflicts.

Answer:

the just - world phenomenon.